[Coco] DW and 6551

[Stephen H. Fischer]

And there is the 6551 flaw if I remember correctly voids the entire idea of using it.

The DW people can say it better but as the DW transfers are so fast unless you are transferring huge files it should not drop characters when typing.

I have not read of any reports.

SHF

----- Original Message ----- 
From: "Allen Huffman" <alsplace at pobox.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, February 10, 2015 7:07 PM
Subject: Re: [Coco] DW and 6551


>> On Feb 10, 2015, at 7:43 PM, Stephen H. Fischer <SFischer1 at Mindspring.com> wrote:
>> 
>> Are you really understanding the speed that DW bitbanger runs at?
>> 
>> There is no comparison with any CoCo hardware solution!
> 
> 
> Yes. I was curious if the downshift in speed could make the system more responsive. It would be a nice tradeoff :) But, if the 6551 driver still slugged up the system during transfers, I can’t see any reason to do that.
> 
> I noticed CoCoSDC causes dropped characters when typing too — I wonder if there’s something that can be done in the driver to reduce that, or if it’s missing some IRQ support that SC2, KenTon, SuperIDE, etc. have which allows it.
> 
> — A
> 
> 
> 
> 
> 
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